I have revised this Weakness The photoelectric effect Strength EM radiation & quantum phenomena Covered in class PHYA1 3.1.2 I can do this already AS Physics: what you need to know Book references I can describe an experiment to demonstrate the photoelectric effect. AQA: 30; APfY: 166 I understand that the photoelectric effect provides evidence for the particle-nature of light (electromagnetic radiation). AQA: 31; APfY: 166 I understand that a photon is a quantum (‘particle’) of electromagnetic energy. AQA: 8 & 31; APfY: 166 I can calculate the energy of a photon using 𝑬 = 𝒉𝒇 or = the Planck constant. 𝒉𝒄 , where h is I can explain the meaning of the term ‘work function’ (φ). I can explain the meaning of the term ‘threshold frequency’ (f0). I can recall and use Einstein’s photoelectric equation (hf = φ + 𝑬𝒌𝒎𝒂𝒙 ). AQA: 31; APfY: 167 AQA: 31; APfY: 168 AQA: 30; APfY: 168 AQA: 31 APfY: 169 Collisions of electrons with atoms I can explain the meaning of the term ‘electronvolt’ (eV). AQA: 35; APfY: 165 I can explain the meaning of the term ‘ionisation’. AQA: 34; APfY: 180 I can explain the meaning of the term ‘excitation’. AQA: 35; I can use the terms ionisation and excitation to explain how a fluorescent tube works. AQA: 37; APfY: 339 & 340 Energy levels and photon emission I can describe three types of spectra. AQA: 39; APfY: 178 & 182 I can explain the meaning of the term ‘line spectrum’. AQA: 39; APfY: 178 I can explain what line spectra tell us about the structure of atoms. AQA: 36 & 39; APfY: 180 & 181 I can use the equation hf = E1 – E2 to calculate the energy of photons emitted or absorbed by a particular atom. AQA: 39; APfY: 181 Wave-particle duality I can describe experimental evidence for the wave-nature of particles (and compare this with the photoelectric effect). I can calculate the de Broglie wavelength of a particle using = where mv is the momentum of the particle. 𝒉 𝒎𝒗 , AQA: 41 & 42; APfY: 170 AQA: 42; APfY: 171 Book references: AQA = AQA Physics A by Breithaupt (Pub. Nelson Thornes) – the AQA endorsed textbook APfY = Advanced physics for you by Johnson, Hewett, Holt and Miller (Pub. Nelson Thornes)